Why does ice float in liquid water? The crystalline lattice of ice causes it to be denser than liquid water. The ionic bonds between the molecules in ice prevent the ice from sinking. The high surface tension of liquid water keeps the ice on top. Stable hydrogen bonds keep water molecules of ice farther apart than water molecules of liquid water.

answer: 45

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the cell is the smallest structural and functional unit of living organisms, which can exist on its own. therefore, it is sometimes called the building block of life. some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.

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